Number the Stars by Lois Lowry

As the German troops begin their campaign to relocate" all the Jews of Denmark, Annemarie Johansen's family takes in Annemarie's best friend, Ellen Rosen, and conceals her as part of the family.

Through the eyes of ten-year-old Annemarie, we watch as the Danish Resistance smuggles almost the entire Jewish population of Denmark, nearly seven thousand people, across the sea to Sweden. The heroism of an entire nation reminds us that there was pride and human decency in the world even during a time of terror and war.